My old neighbor Grace

I'm Justin now 46 married, still a bit of a nerd. Back when I was 19 I lived with my parents and didn't have a girlfriend. I would be home alone on most weekends as my parents went away. We had a widowed neighbor Grace then 69 and I started mowing her lawn when I did ours. Nothing special in that, Grace was slender and quite fit looking for her age. Then one weekend I had mowed the lawns and was sitting in our yard waiting for the lawnmower to cool down so I could clean it up before putting away. My father always wanted it cleaned after use. Grace came to the fence and asked could I give her a hand with some boxes. I went over to her place and done what she wanted, I was in a T-shirt and shorts and no underwear. While putting away a box on top of a high shelf. I was standing on moveable steps and Grace could see my cock and balls. Without saying anything she stood on the bottom step and put her hand into my shorts taking hold of my cock and started to play with it. I was shocked and didn't know what to do, Grace then said after I had a hardon that she would take care of it and she led me to her bed. Undressing me and having me lay on my back, I did as required and she went down on me and then mounted me. That was the start of regular sex between us which lasted for almost 2 years. Then she moved away to live with her daughter, several months before my father passed away and it was just me and my mother. After Grace moved away, I started looking at my mother in a sexual way. But that's another story.